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Innovation and Expertise to Meet Your Heating Needs

Portage & Main Boilers have been manufactured for over 40 years. We continually strive to be the leading innovators in the outdoor boiler business! Our factory is a state of the art facility that employs the latest manufacuring technology – including computer controlled robotic welders and laser cutting equipment.

The Portage & Main range of products include Ultimizer wood and coal models, auto-feed coal/pellet burners, automated wood chip burning systems and a line of EPA approved gasification boilers.

We lead the way in innovation, quality and efficiency, using time tested and proven designs. We have developed the most efficient heat transfer exchangers available in any outdoor boiler on the market today.

Our customers are home owners, farmers, commercial and industrial businesses, schools and municipal authorities. We sell boilers from Alaska to Florida and everywhere in between. Our customers do their research and recognize the value of a clean burning, environmentally friendly boiler that will save them fuel, money and time.

If you would like to speak to one of our existing customers about their Portage & Main experience, connect with us today.